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M48T35AV_11 Datasheet, PDF (19/29 Pages) STMicroelectronics – 3.3 V, 256 Kbit (32 Kbit x 8) TIMEKEEPER® SRAM
M48T35AV
5
DC and AC parameters
DC and AC parameters
Note:
This section summarizes the operating and measurement conditions, as well as the DC and
AC characteristics of the device. The parameters in the following DC and AC characteristic
tables are derived from tests performed under the measurement conditions listed in the
relevant tables. Designers should check that the operating conditions in their projects match
the measurement conditions when using the quoted parameters.
Table 7. Operating and AC measurement conditions
Parameter
M48T35AV
Unit
Supply voltage (VCC)
Ambient operating temperature (TA)
Load capacitance (CL)
Input rise and fall times
Input pulse voltages
Input and output timing ref. voltages
3.0 to 3.6
V
0 to 70
°C
50
pF
≤5
ns
0 to 3
V
1.5
V
Output Hi-Z is defined as the point where data is no longer driven.
Figure 12. AC measurement load circuit
DEVICE
UNDER
TEST
CL = 50pF
(or 5pF)
1.75V
CL includes JIG capacitance
AI02586
Table 8. Capacitance
Symbol
Parameter(1)(2)
Min
Max
CIN
COUT(3)
Input capacitance
Output capacitance
-
10
-
10
1. Effective capacitance measured with power supply at 5 V; sampled only, not 100% tested.
2. At 25 °C, f = 1 MHz.
3. Outputs deselected.
Unit
pF
pF
Doc ID 6845 Rev 9
19/29